Home / 3,519,828.72-5,279,762.52-1,275,908.40

Finding the Fourth Proportional to 3,519,828.72, 5,279,762.52 and 1,275,908.40

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Solution

The fourth proportional to 3,519,828.72, 5,279,762.52 and 1,275,908.40 is: 1,913,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519,828.72 : 5,279,762.52 = 1,275,908.40 : x
  2. Step 2: Convert to fraction form
    3,519,828.72/5,279,762.52 = 1,275,908.40/x
  3. Step 3: Cross multiply
    3,519,828.72x = 5,279,762.52 × 1,275,908.40
  4. Step 4: Simplify right side
    3,519,828.72x = 6,736,493,349,273.17
  5. Step 5: Solve for x
    x = 6,736,493,349,273.17/3,519,828.72
  6. Step 6: Final answer
    x = 1,913,869.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.